title: Arrangements and rearrangements of sequences flanking the two types of rDNA insertion in D. melanogaster.
mesh_terms: D000818:Animals; D001483:Base Sequence; D004330:Drosophila / Q000235:genetics; D004331:Drosophila melanogaster / Q000235:genetics*; D005796:Genes; D006570:Heterochromatin; D012335:RNA, Ribosomal / Q000235:genetics*; D013045:Species Specificity
chemical_list: D006570:Heterochromatin; D012335:RNA, Ribosomal